Two-or-three-dimensional-motion, Mechanical Engineering

Net force acting on particle of mass 2 kg is 10N in north direction.At t=o, particle was moving eastwards with 10m/s. Find displacement and velocity of particle after 2 seconds.

Ans)
given force =F=10N

mass M=2kg

velocity u=10m/s

then acceleration a=F/M=10/2=5m/s^2

then displacement=s=ut+1/2at^2

here u=initial velocity

t=time

a=acceleration

then we get the displacement is=30m

2.velocity=u+at

then we get velocity as 20m/s.

Posted Date: 3/8/2013 7:08:50 AM | Location : United States





Initial velocity is 10 m/s in x-direction.

Now a force of 10N acts in y-direction 

So , using F = ma 

               a = f/m = 10/2 = 5m/s2in y-direction 

After 2 seconds velocity in y-direction would become 10 m/s

Now we can take the resultant of the two velocities i.e 10 m/s in x-direction & 10m/s in y-direction

Therefore Resultant velocity = (102+102)1/2

                    = (200)1/2 and 450 North of East

Displacement = velocity x time 

                    = (200)1/2x 2

                    = 20x(2)1/2m 450 north of east

Posted by | Posted Date: 3/8/2013 7:09:55 AM


Related Discussions:- Two-or-three-dimensional-motion, Assignment Help, Ask Question on Two-or-three-dimensional-motion, Get Answer, Expert's Help, Two-or-three-dimensional-motion Discussions

Write discussion on Two-or-three-dimensional-motion
Your posts are moderated
Related Questions

Q. Define Non - consumable electrode? These types of electrodes are prepared from high melting point materials. Mainly carbon, pure tungsten and its alloy are used for electrod

Do not round intermediate calculations; however for display purposes report intermediate steps rounded to four significant figures. Give your final answer(s) to three significant f

Show that the force exerted by jet of water on a fixed semi-circular plate in the direction of jet when the jet strikes at the centre of the semi-circular plate is two times the fo

Autocad screen- The autocad Screen basic chapter of Autocad course it will show the display of Autocad on computer screen

Q.   Give the expression for inductance of a ? N ?    turn coil wound on a core having length I cross - sectional area A and magnetic permeability µ. Explain the significance of

Spark Plug: A spark jumps between the electrodes of the spark plug when the voltage developed by the ignition system reaches the required value. This electrical spark occurs at a

Planning of Railway Stations and Facilities Provided: The planning of railway stations should cover the following aspects: (a)        The site selected should be easily ac

Q. Explain about Post-weld Heat Treatment? Post-weld Heat Treatment (PWHT) shall be in accordance with the Code. PWHT procedures, including properly identified charts or certi

EQUIPMENT FOR RESISTANCE WELDING-Stored energy equipments   Energy can be stored and further utilised for welding. One method of storing energy is in capacitors electrostat